Eccentric slip socket



Sept. I6, 1930.. F. J. HIND ERLiTER 1,776,027

Filed Oct. 22, 1928 Patented Sept. 16, lean FATE??? GFFHE ECCEN'IRIC SLIP SOCKET Application filed October 22, 1928.

The present invention relates to fishing tools, and more particularly to a tool similar to the bit hook disclosed in my Patent No. 1,527,413, issued February 21th, 1925,

and which I term an eccentric slip socket.

An object of my invention is to provide a fishing tool similar to my patented bit hook adapted to wedgingly engage the fish to be removed from the well.

Another object of the invention resides in the provision of an eccentric slip socket capable of contemporaneously moving a slanting tool in the bottom of the well to a vertical position and wedgingly engaging the tool at an intermediate portion of the tool.

In my patented bit hook, a semi-circular shoulder was provided at the upper end of the cylindrical portion thereof, upon which the collar of the bit to be removed from the 2 well was designed to restafter the tool had moved the bit out of its slanting position into the vertical, so that when the tool was raised, the collar of the bit engaged the shoulder and the bit was removed with the tool.

lthough my bit hook can be used satisfactorily to remove a bit from a well, as long as the collar end of the bit is accessible to the cylindrical portion of the bit hook, still I find that in some cases when the bit is inclined considerably out of the horizontal,

it is desirable to wedgingly ,rip an intermediate portion of the bit rather than grip it at thecollar. Therefore, the specific object of this invention is to provide a slip socket similar in construction to that of my patented bit hook, but diifering from the bit hook in that it includes wedge means whereby the socket may wedgingly engage an intermediate portion of the bit for the purpose of removing the bit from the well.

Another object of the invention is to provide an eccentric slip socket having a tapered point merging into the hook portions carrying the slips whereby the tool may be aligned with facility with the fish or hit and whereby the socket will not be apt to lodge on the top of the bit being recovered, but will tend to slide 01f the top of the bit into a proper engaging position.

In accordance with the general features of Serial No. 314,062.

my invention, I provide an eccentric slip socket comprising a substantially cylindrical tubular portion having its lower end cut on a slant and beveled upwardly on the inside to a plane disposed at right angles to the vertical axis of the tool and having one side formed open, there being slips on each side of the opening designed to engage the fish to be removed from the well. This eccentric slip socket of my invention, like my patented bit hook, has an eccentrical offset shank connected to the cylindrical portion at its lower end and having its upper end provided with a threaded pin for coupling with a string of fishing tubes or tools.

Other and further important objects of this invention will be apparent from the disclosures in the drawings and specification.

The invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings:

Figure 1 is a fragmentary View partly in section illustrating the manner in which the slip socket of my invention engages a bit hook in the bottom of a well.

Figure 2 is an elevation of the tool of my invention partly in section.

Figure 3. is a horizontal view partly in section taken on the line IIIIII of Figure 2 looking downwardly.

Figure 4 is an enlarged fragmentary sectional view of the lower end of my fishing tool taken at right angles to the illustration in Figure 2.

As shown on the drawings:

The reference character 10 designates the bottom of a well with a caved-in portion located at the place of drilling and designated by the reference character 11. downwardly in the well 10 is a string of pipes or fishing tools 12 including a bottom socket 13 into which is screwed a pin 14 formed integral with the collar 15 of a socket embodying the features of this invention. It is to be understood that the fishing tool of the present invention is lowered into the bottom of the well in the usual manner through the means of the string of pipes or fishing tools 13.

Extending defined by the scope and spirit of the appended claims.

I claim as my invention:

1. In a fishing tool of the type described, a substantially cylindrical tubular portion having its lower end out on a slant, said slanting end of said portion beingbeveled upward- Gil ly on the inside of the portion to a plane disposed at right angles to the vertical axis of the tool, an eccentrically disposed shank connected to said portion in line with the lowermost part of said slanting end, and a plurality of slips mounted in the inner surface of said cylindrical portion and arranged to engage with an intermediate portion of a slanting fish in the bottom of a well as the fishing tool is lowered on the fish.

2. In a fishing tool of the type described an open-sided cylindrical tubular portion having its lower end cut on a slant, the opening in said portion being disposed opposite the lowermost part of said slanting end, said slanting end of said portion being beveled upwardly on the inside of the portion to a 3 plane disposed at right angles to the vertical axis of the tool, wedge means mounted in said i ortion above said beveled end, and a shank connected to the other end or" the portion for enabling the tool to be connected to a string of pipes or fishing tools, said wedge means being arranged to engage an intermediate portion of a slanting fish on the bottom of a well as the fish is lowered onto the same, whereby upon an upward pull being exerted upon the tool said wedge means will grip sa id fish in such a way that the fish, due to gravity,

will be swung into the vertical.

3. In a fishing tool of the class described, a shank, an open-sided cylindrical portion on the end of said shank, said shank being offset relative to said portion and said portion being beveled to a point in line with said shank, and wedge means in said cylindrical portion on each side of the open side therein for facilitating the alignment of a fish with said portion and for wedging the fish to said portion.

4:. In a fishing tool of the type described, a shank carrying means for attachment to a string of fishing pipe and the like, an offset tubular open-sided member formed from the material of the shank comprising oppositely disposed hook-like members merging into a depending point, and wedge means mounted in each of said hook-like members.

5. In a fishing tool of the type described, a shank carrying means for attachment to a string of fishing pipes and the like, an offset tubular open-sided member formed from the material of the shank comprising oppositely disposed hook-like members forming a fiat semi-circular shoulder at the junction between the tubular member and the shank, said hook-like members merging into a depending point, and a slip mounted in each on the upper end of the object to cause theweight of the same to swing it from its angular position into the vertical and utilizing said pulling force to cause the object to be wedgingly engaged for elevation from the well.

7. The method of retrieving a bit or other fish from a well when the bit is disposed in a slanting position in the well, which consists in pivotally embracing an intermediate portion of the bit above the center of gravity of the bit, and exerting an upward pull on the bit to cause said bit or fish to swing from its slanting position back into the vertical whereby the intermediate portion of the bit may be wedgingly engaged for removal from the well. I

8. In a fishing tool of the class described, a body including means for gripping the fish to be removed from a well and emergency means associated with said body and disposed above said gripping means for only engaging a portion of the fish in the event that the gripping means should fail to hold the fish.

9. In a fishing tool of the class described, a body including means for gripping the fish to be removed from a well and emergency means associated with said body for engaging a portion of the fish in the event that the gripping means should fail to hold the fish, said latter means comprising a shoulder formed on said body above said gripping means for abutting said portion of said fish.

10. In a fishing tool of the class described, a body including wedge means for frictionally engaging the fish to be removed from a well, and a shoulder formed on the upper end of the body above said wedge means arranged to engage a portion of the fish in the event that the wedge means should fail to hold the fish.

In testimony whereof I have hereunto subscribed my name at Tulsa, Tulsa County, Oklahoma.

FRANK J. HINDERLITER. 

